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Yr. 11 3rd Mid Term Physics Exam iz

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

Identify the only Fundamental quantity among the following

a)

Force

b)

Pressure

c)

Mass

d)

Energy

2.

A body of mass 10kg has a weight of ---------- if the acceleration due to gravity is 9.87ms-2 at the location where the body is.

a)

9.87N

b)

98.7N

c)

987N

d)

.987N

3.

Which of the following is not a fundamental unit?

a)

Kilogram

b)

Metre

c)

joule

d)

Kelvin

4.

Which of the following is most suitable for measuring weight?

a)

Lever balance

b)

Torsion bar

c)

Spring balance

d)

Work function

5.

A Force of 50N produces an acceleration of 2.5ms-2 on a body. Find the mass of a body.

a)

50kg

b)

40kg

c)

30kg

d)

20kg

6.

A rectangular glass block is 70cm long and 50cm wide, if its height is 30cm. Find its volume in cubic metre

a)

105m3

b)

10.5m3

c)

0.105m3

d)

1050m3

7.

Whenever a force is applied through a distance, which of the following takes place

a)

Work is done

b)

Energy is destroyed

c)

Power is lost

d)

None of the above

8.

Which of the following is the correct relation for Potential Energy

a)

P.E=hg

b)

P.E=mv2

c)

P.E=mgh

d)

P.E=ma

9.

A body of mass 80kg rests on a horizontal platform which is 5m above the ground. If “g” the acceleration due to gravity at the location is 10ms-2, what is the Potential Energy possessed by the body

a)

40J

b)

400J

c)

4000J

d)

40000J

10.

According to kinetic molecular theory, Temperature can be defined as

a)

Heat transfer

b)

Average collision impact

c)

Average kinetic energy of molecules

d)

Average density of molecules

11.

The Kinetic energy of a moving body is 450J, if the mass of this body is 1Kg, calculate its velocity

a)

10ms-1

b)

20ms-1

c)

30ms-1

d)

40ms-1

12.

Which of the following is the unit of Power?

a)

joule

b)

newton

c)

watt

d)

seconds

13.

A boy carry a load of 60N through a distance of 20m in 2minutes. Calculate the Power of the boy

a)

30W

b)

20W

c)

10W

d)

1W

14.

Waves whose direction of vibration is perpendicular to its direction of propagation fall under which category

a)

Mechanical wave

b)

Solar wave

c)

Transverse waves

d)

Longitudinal waves

15.

The wavelength of a radio wave is 5 x 10-3m, at what frequency will a broadcasting station transmit these waves if the velocity of Electromagnetic waves is 3 x 108m/s

a)

3 x 103Hz

b)

4 x 105Hz

c)

5 x 107Hz

d)

6 x 1010 Hz

16.

A 42kg glass cuboid has a density of 7kgm^(-3). Calculate the volume of this cuboid

a)

12m^3

b)

9m^3

c)

6m^3

d)

3m^3

17.

A force of 500N acts on an area of 25m^2. Calculate the pressure in this case.

a)

2N〖m-〗^2

b)

20N〖m^(-2)〗

c)

30〖Nm〗^(-2)

d)

40Nm^(-2)

18.

In liquid, pressure is expressed mathematically as --------

a)

P= Ah

b)

P = hgx

c)

P = hρg

d)

P = hfe

19.

Pressure applied at one point is equally transmitted to all other part including the wall in an enclosed fluid. This statement is known as

a)

Pythagoras theorem

b)

Pascal principle

c)

Niels law

d)

Dalton law

20.

A uniform metre rule is balanced on a fulcrum placed at the 35cm mark by suspending a mass of 120g at the 10cm mark. Calculate the mass of the metre rule.

a)

60g

b)

80g

c)

120g

d)

200g

21.

Which instrument is used to measure relative humidity

a)

Hydrometer

b)

Hygrometer

c)

Barometer

d)

Altimeter

22.

Which of the following best describes a transverse wave?

a)

The particles vibrate in the same direction as the wave motion

b)

The particles vibrate in a circular motion

c)

The particles vibrate perpendicular to the direction of wave motion

d)

The wave does not transfer energy

23.

Which of the following is a longitudinal wave?

a)

Water wave

b)

Light wave

c)

Sound wave

d)

Radio wave

24.

Mechanical waves require a __________ to travel.

a)

medium

b)

vacuum

c)

screen

d)

prism

25.

Which type of wave can travel through a vacuum?

a)

Sound wave

b)

Water wave

c)

Seismic wave

d)

Electromagnetic wave

26.

The distance between two successive crests or troughs in a wave is called:

a)

Frequency

b)

Amplitude

c)

Wavelength

d)

Period

27.

What is the unit of frequency?

a)

Hertz (Hz)

b)

Newton (N)

c)

Joule (J)

d)

Meter (m)

28.

The number of complete waves passing a point in one second is called:

a)

Speed

b)

Period

c)

Frequency

d)

Wavelength

29.

A water wave has a speed of 4 m/s and a wavelength of 0.8 m. What is its period?

a)

0.2 s

b)

0.4 s

c)

0.8 s

d)

2.0 s

30.

A sound wave travels at a speed of 340 m/s. If the wavelength is 0.85 m, what is the frequency?

a)

289 Hz

b)

340 Hz

c)

2890 Hz

d)

400 Hz

31.

All electromagnetic waves travel at the same speed in a vacuum. What is this speed?

a)

340 m/s

b)

3 × 10⁸ m/s

c)

1.5 × 10⁸ m/s

d)

3 × 10⁶ m/s

32.

Waves that need a medium for transmission are known as:

a)

Electromagnetic waves

b)

Mechanical waves

c)

Optical waves

d)

Transverse waves

33.

Which of the following is true about light as a wave?

a)

It requires a medium to travel

b)

It is a longitudinal wave

c)

It is a mechanical wave

d)

It exhibits interference and diffraction

34.

Which wave property of light explains the formation of colorful patterns in soap bubbles?

a)

Rectilinear propagation

b)

Reflection

c)

Diffraction

d)

Interference

35.

What is the speed of light in a vacuum?

a)

3.0 × 10⁸ m/s

b)

3.0 × 10⁶ m/s

c)

1.5 × 10⁸ m/s

d)

1.0 × 10⁶ m/s

36.

Which of the following does NOT support the wave nature of light?

a)

Refraction

b)

Polarization

c)

Photoelectric effect

d)

Interference

37.

Which phenomenon shows that light can bend around corners?

a)

Reflection

b)

Diffraction

c)

Refraction

d)

Absorption

38.

Rectilinear propagation of light means that light travels:

a)

In circular paths

b)

In a vacuum only

c)

In straight lines

d)

In zig-zag paths

39.

The angle of incidence is equal to:

a)

Angle of deviation

b)

Angle of refraction

c)

Angle of reflection

d)

Critical angle

40.

In reflection, the incident ray, reflected ray, and the normal all lie:

a)

In different planes

b)

In the same plane

c)

At right angles to each other

d)

In circular paths

41.

If a ray strikes a mirror at 40°, what is the angle between the incident and reflected rays?

a)

80°

b)

40°

c)

90°

d)

20°

42.

An image formed in a plane mirror is:

a)

Real, inverted and smaller

b)

Virtual, erect and same size

c)

Virtual, inverted and smaller

d)

Real and magnified

43.

The image formed by a plane mirror is located:

a)

In front of the mirror

b)

Behind the mirror

c)

On the mirror surface

d)

Between the observer and the object

44.

The distance of the image from the mirror is always:

a)

Less than the object distance

b)

More than the object distance

c)

Equal to the object distance

d)

Depends on light intensity

45.

Which characteristic is NOT true of the image in a plane mirror?

a)

Same size

b)

Erect

c)

Laterally inverted

d)

Magnified

46.

The number of images formed by two plane mirrors inclined at angle θ is given by:

a)

180/θ

b)

360/θ

c)

(360/θ) - 1

d)

(360/θ) + 1

47.

Two plane mirrors are inclined at 90°. How many images are formed?

a)

2

b)

3

c)

4

d)

1

48.

If two plane mirrors are placed at 45°, what is the number of images?

a)

6

b)

7

c)

8

d)

9

49.

Which of the following is NOT a characteristic of the Image formed in a plane mirror?

a)

Erect

b)

Same size as the object

c)

Formed behind the mirror(Virtual)

d)

Real

50.

Which of the following is a type of Curved Mirror?

a)

Plane mirror

b)

Standing Mirror

c)

Convex mirror

d)

Beauty mirror

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